<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="js/jquery.min.js"></script>
</head>
<body>
<h1>用户界面</h1>
<div id="test">动态添加标签</div>
<button onclick="ss()">添加标签</button>

<script>
  function  ss()
  {
      $('#test').append("<div>这是动态添加的</div>");
  }

</script>
</body>
</html>